/ Experiment-HEP

Fragmentation of 7- to 9-GeV/c deuterons to cumulative kaons

Afanasiev, S.V. (Dubna, JINR) ; Zolin, L.S. (Dubna, JINR) ; Isupov, A.Yu. (Dubna, JINR) ; Ladygin, V.P. (Dubna, JINR) ; Litvinenko, A.G. (Dubna, JINR) ; Reznikov, S.G. (Dubna, JINR) ; Khrenov, A.N. (Dubna, JINR)

Published in: Phys.Atom.Nucl. / Yad.Fiz.
Year: 2014 / 2014
Vol.: 77 / 77    Num./Issue: 1 / 1
Page No: 22-30 / 25-33
Pages: 9
Year: 2014

Abstract: Experimental results concerning the kaon yield in the reaction d + Be → K ± (0 ◦ )+ X for values of the cumulative variable x c in the range between 0.88 and 1.37 are presented. Values in the region of x c ≥ 1 correspond to short nucleon – nucleon distances (deuteron-core region) at which nucleon wave functions begin overlapping each other, forming a cluster ( fl ucton) where the hadron-matter density is higher than the average matter density in the nucleus. The behavior of the K + /K − yield ratio in this region may be interpreted within the hypothesis that the quark sea in nuclei becomes harder because of the presence of a fl ucton component in nuclear matter.

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DOI: 10.1134/S1063778814010025
 Запись создана 2014-03-04, последняя модификация 2014-03-04

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